<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>01输入输出</title>
    <script>
        prompt('请输入你的名字');
        alert('输入错误');
        console.log('我在控制台呢');
    </script>

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</head>
<body>
    
</body>
</html>